Margaretha Neuburger was a daughhter of Hartog Neuburger and Sara Gobets. She married Izaak Theeboom in Amsterdam on 1 April 1930, a son of Daniel Theeboom and Keetje Goudsmit. Margaretha and Izaak had two children: Robert and Donald. The complete family has been killed in Sobibor on 9 July 1943.

City archive of Amsterdam, archive cards of Izaak Theeboom, Daniel Theeboom and website www.wiewaswie.nl.